Reposting my reply that I made last week to this same question of yours in the trading in case anyone comes across it here & is interested:

That’s a good question & I did think about it last night which I was going through the charts. I put down several dozen long candidates & many of those were individual regional bank stocks. In fact, so many & the charts looked nearly identical on all that I figured they were all falling in sync to do forced selling from withdrawals out of KRE & IAT.
I considered going with some of the individual regional banks but as the charts were so similar & it is much easier & less risky) to manage a trade on a sector ETF vs. several individual bank stocks, I went with KRE.
I thought about the exposure to frackers as that is likely a big drag on the banks that have loans out to them but I image it would take a lot of work to figure out which banks have & to what extent for each one.
I think it might be safe to assume that the regional banks with a significant footprint in the regions that have fracking are the ones with exposure but A) how much of that has already been priced in with the near vertical plunge and B) the good banks have likely been sold down with the bad & once the bounce comes, the bad will likely rally with the good.. hence the benefit of the ETF.